I own a Landscaping Business in Washington State, I was hired by a homeowner to build a staircase from the back of the property that leads down to the ocean. As well as build a big raised garden planter and to grade and gravel the driveway. A deposit amount of $3k was given to me before the job started . Upon completion the remainder of the agreed project amount of $5000 would be paid. I received text messages from the owner saying the job looked great. When I completed the job and asked the home owner for the reaming money he told me that he doesn't owe me any money that I did the work all wrong etc. And if I don't get off his property he will call the police. What are my options (small claims, mechanics lien, civil court?)in Washington State as far as getting paid?